540205573 has 2 divisors, whose sum is σ = 540205574. Its totient is φ = 540205572.

The previous prime is 540205553. The next prime is 540205579. The reversal of 540205573 is 375502045.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 392753124 + 147452449 = 19818^2 + 12143^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-540205573 is a prime.

It is a super-2 number, since 2×540205573² = 583644122200516658, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540205579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270102786 + 270102787.

It is an arithmetic number, because the mean of its divisors is an integer number (270102787).

Almost surely, 2^540205573 is an apocalyptic number.

It is an amenable number.

540205573 is a deficient number, since it is larger than the sum of its proper divisors (1).

540205573 is an equidigital number, since it uses as much as digits as its factorization.

540205573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21000, while the sum is 31.

The square root of 540205573 is about 23242.3228830511. The cubic root of 540205573 is about 814.4286072336.

The spelling of 540205573 in words is "five hundred forty million, two hundred five thousand, five hundred seventy-three".